RegexHelpers.cs

// Papercut
// 
// Copyright © 2008 - 2012 Ken Robertson
// Copyright © 2013 - 2017 Jaben Cargman
//  
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//  
// http://www.apache.org/licenses/LICENSE-2.0
//  
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

namespace Papercut.Common.Helper
{
    using System;
    using System.Text.RegularExpressions;

    public static class RegexHelpers
    {
        public static bool IsValidRegex(this string regexString)
        {
            if (!regexString.IsSet())
                return false;

            try
            {
                var regex = new Regex(regexString);
                return true;
            }
            catch (ArgumentException)
            {
            }

            return false;
        }
    }
}